Commonly used in the multiplayer game Unreal Tournament, it means someone who waits at the opposing team's base and camps until his or her flag is returned, then takes the flag and runs solo. Can also refer to someone that camps and kills everyone that is hurt.

As Barbie's team was trying to run the flag, she camped at the other based and started to cherry pick.

The act of an individual thrusting his/her enclosed fist into the rectum of another. Once inside, the first individual opens his fist and grabs a nugget of poo. Finally, the first individual removes the artifact and enjoys the fruits of their labor.

Charlie cherry picked that bitch last week and she hasn't shat right since.